Added more raymarching nodes and examples

addons/material_maker/nodes/sdf3d_circle_repeat.mmg

@@ -0,0 +1,50 @@
+{
+	"name": "sdf3d_circle_repeat",
+	"node_position": {
+		"x": 0,
+		"y": 0
+	},
+	"parameters": {
+		"a": 0,
+		"c": 4,
+		"r": 0.24,
+		"rx": 4,
+		"ry": 4,
+		"s": 0.3,
+		"x": 0.35,
+		"y": 0,
+		"z": 0
+	},
+	"shader_model": {
+		"code": "",
+		"global": "vec3 circle_repeat_transform(vec3 p, float count) {\n\tfloat r = 6.28/count;\n\tfloat pa = atan(p.x, p.y);\n\tfloat a = mod(pa+0.5*r, r)-0.5*r;\n\tvec3 rv;\n\tfloat c = cos(a-pa);\n\tfloat s = sin(a-pa);\n\trv.x = p.x*c+p.y*s;\n\trv.y = -p.x*s+p.y*c;\n\trv.z = p.z;\n\treturn rv;\n}\n",
+		"inputs": [
+			{
+				"default": "0.0",
+				"label": "",
+				"name": "in",
+				"type": "sdf3d"
+			}
+		],
+		"instance": "",
+		"name": "Circle Repeat",
+		"outputs": [
+			{
+				"sdf3d": "$in(circle_repeat_transform($uv, $c))",
+				"type": "sdf3d"
+			}
+		],
+		"parameters": [
+			{
+				"default": 4,
+				"label": "",
+				"max": 32,
+				"min": 1,
+				"name": "c",
+				"step": 1,
+				"type": "float"
+			}
+		]
+	},
+	"type": "shader"
+}

addons/material_maker/nodes/sdf3d_repeat.mmg

@@ -0,0 +1,67 @@
+{
+	"name": "sdf3d_repeat",
+	"node_position": {
+		"x": 0,
+		"y": 0
+	},
+	"parameters": {
+		"a": 0,
+		"r": 0.24,
+		"rx": 4,
+		"ry": 4,
+		"s": 0.3,
+		"x": 0.35,
+		"y": 0,
+		"z": 0
+	},
+	"shader_model": {
+		"code": "",
+		"global": "vec3 repeat(vec3 p, vec3 r, float seed, float randomness) {\n\tvec3 a = (rand3(floor(mod((p.xy+0.5*r.xy)/r.xy, 1.0/r.xy)+vec2(seed)))-0.5)*6.28*randomness;\n\tp = mod(p+0.5*r,r)-0.5*r;\n\tvec3 rv;\n\tfloat c;\n\tfloat s;\n\tc = cos(a.x);\n\ts = sin(a.x);\n\trv.x = p.x;\n\trv.y = p.y*c+p.z*s;\n\trv.z = -p.y*s+p.z*c;\n\tc = cos(a.y);\n\ts = sin(a.y);\n\tp.x = rv.x*c+rv.z*s;\n\tp.y = rv.y;\n\tp.z = -rv.x*s+rv.z*c;\n\tc = cos(a.z);\n\ts = sin(a.z);\n\trv.x = p.x*c+p.y*s;\n\trv.y = -p.x*s+p.y*c;\n\trv.z = p.z;\n\treturn rv;\n}\n",
+		"inputs": [
+			{
+				"default": "0.0",
+				"label": "",
+				"name": "in",
+				"type": "sdf3d"
+			}
+		],
+		"instance": "",
+		"name": "Repeat",
+		"outputs": [
+			{
+				"sdf3d": "$in(repeat($uv, vec3(1.0/$rx, 1.0/$ry, 0.0), $seed, $r))",
+				"type": "sdf3d"
+			}
+		],
+		"parameters": [
+			{
+				"default": 4,
+				"label": "X",
+				"max": 32,
+				"min": 1,
+				"name": "rx",
+				"step": 1,
+				"type": "float"
+			},
+			{
+				"default": 4,
+				"label": "Y",
+				"max": 32,
+				"min": 1,
+				"name": "ry",
+				"step": 1,
+				"type": "float"
+			},
+			{
+				"default": 0.5,
+				"label": "R",
+				"max": 1,
+				"min": 0,
+				"name": "r",
+				"step": 0.01,
+				"type": "float"
+			}
+		]
+	},
+	"type": "shader"
+}